Paper-box machine



(No Model.)

A. BIRNIH- PAPER BOX MACHINE.

Patented Sept. 28,1897.

UNITED STATES" PATENT OFFICE. v

ALFRED BIRNIE, OF SPRINGFIELD, MASSACHUSETTS.

PAP ER-BOX-MACHINE.

SPECIFICATION forming part of, Letters Patent No. 590,697, datedSeptember 28, 1897. Application filed January 29, 1397. Serial Nb.621,135- (No model.)

To all whom it may concern.-

Be it known that I, ALFRED BIRNIE, a citizen of the United States, and aresident of Springfield, county of Hampden, and State of Massachusetts,have invented certain new and useful Improvements in- Paper-BoxMachines, of which the following is a specification.

This invention relates to-improvements in paper-box machines of theclass and character shown in Letters Patent of the United States, datedMay 8, 1894, Noi 519,531, and the present improvements pertain to themechanism comprised in what is termed the throat of the machinef'wherethe folding up of the flaps of the blank to make the completed box isperformed.

The particular object of the present invention is to adapt by theprovision of slight additional parts the aforementioned machine forproducing a paper box of somewhat different character from that whichthe machine was originally designed to produce; and the inventionconsists in the combination, with the parts of the paper-box machinecomprised in the folding box or throat, of addi tional folding-lips orflap-turners, all as will hereinafter fully appear and be set forth inthe claims.

Reference is to be had to the accompanying drawings, in which thepresent improvements are illustrated in conjunction with so much of theaforementionedpatented machine as to render apparent their applicabilitythereon, and in the drawings 1 Figure 1 is a plan view more especiallyof the mechanism constituting the throat and of parts intimatelycooperating therewith. Fig. 2 is a perspective view of one of theupright plates forming a part of one side of the throat, with the extraflap-turner and the movable support for such upright. Fig. 3 is aperspective view illustrating the uprights constituting the front andrear of the throat, two thereof having the extra lip-turners whichcontribute to constitute 'the gist of this inventionand also showing thepeculiar operation of turning up the flap or sections of the blank. Fig.4 is a horizontal'sectional view of the completed box.

The folding box or throat of this paper-box the slides or otherabutments. timed rocking movements are imparted to the 7 Theduplicateduprights D D D D have their approaching n ovements, as carried by theirbase-slides E, imparted from the rockshaft 47 by lever-arms 46 on therock-shafts, which engage the walls of apertures 41 41 inProperlyrock-shaft by cam mechanism not necessary to here describe,being already fully ascertained in and by the aforesaid patent.

The followers B B are operated by toggles,

(seen at 25,) also fully described in said patent, and the followersmove toward each other after the opposite sides of the throat havecontracted and end-set the gummed and turnedup flaps or stay-sections.

The box of the present invention is made up from a blank m, Fig. 3,haviug a bottom section l, the opposite side flaps a a each with endflaps Z) b and 11 b and the bottom section has the end stay-sections dcl.

As the plunger descends into the throat the side flaps a a are turned upangularlyto the bottom by being, as the blank is forced down, forcedwith a wiping action against the upper edges of the paired uprights D DThe side flap a as it is brought up at right angles to the bottom hasits end flaps b 6 turned angularly inward at right angles to it and inthe plane of the box end. The end stay-sections d d are next turned upupon and against the outer faces of flaps b b. The flap o is also turnedup similarly to flap a, but slightly thereafter, so that the end flaps?)19 thereof will be brought outside of the stay-sections d d.

The upper surfaces of flaps 6 having been covered with gum or paste, theseveral flaps constituting three layers of paper or card board at theend of the box are stuck and set by the end followers, which moveinwardly in proper time and crowd these said layers with suificientpressure against the ends of the descended plunger.

This construction of box is very strong and durable and is well adaptedto contain small articles of hardware and the like.

Now it will be perceived that the several uprights D D D D have at theirupper outer corners the beveled lips or flap-turning projections g g,substantially as illustrated in the aforesaid patent. One pair of theuprightsas here shown, the front pairhas in addition to the saidprojections g, as heretofore, the supplemental lips h h, which aredetachably applied by screws 10 10, which pass through their shanks andinto the tops of the uprights D. These lips are preferably tapered orbeveled, as shown, and are shorter and extend inwardly into the throatless far than the usual lips g, on or over which they are mounted, allas plainly shownin the drawings. Therefore as the blank illustrated andreferred to in detail is crowded down and into the throat the particularend flaps to be upturned are those I) I), because the higher positionsof the supplemental lips 77. h insure the initial impingement by saidlips of those particular flaps b h. Then as the blank further descendsthe projections g g on the front pair of the uprights D D insure theupturning of the end stay-sections, lastly followed by the up and inturning of the end flaps b I), carried by the rear side flap 0,

The operations in proper successive order or time may be renderedsomewhat more certain by so timing the movements of the slides E E thatthe forward one thereof moves inwardly slightly in advance of the rearone. This may be done without any mechanical change from the originalpatented machine,of which this invention is regarded assupplemental,beyond very slightly changing the adj ustment or grade ofthe cam which operates for which it was originally designed. It is alsoevident that the machine still retains its adaptability for use forproducing, by the interchange of its folding-plunger and the adjustmentof the normal relations of the parts constituting the throat, boxes ofmany different dimensions as to either length, breadth, or height, or asto changes in all these dimensions at once.

Except for the purposes of adjustment the front and rear uprights,instead of being in two plates D D, might be formed as one part, asobvious, and the invention is in no way to be restricted as to itsutilization on a sectional and adjustable two-part upright D D or uponone integral non-adjustable upright having the two corner projections gg.

I claim- 1. In a paper-box machine, the combination with the plunger, ofthe folding box or throat the walls of which are constituted by the endfollowers, and the upright opposing plates, arranged at right angles tothe ends of the followers, which have the flap-turning projections g gat their upper corners, and the supplemental flap-turning lips h hmounted above one side pair of the projections g g, and each having alength less than that of the adjacent projection g, substantially as andfor the purpose set forth.

2. In apaper-box machine, the combination with the plunger, of thefolding box or throat the walls of which are constituted by the endfollowers, and the upright opposing plates, arranged at right angles tothe ends of the followers, which have the fiap-turning projections g g,and the supplemental flap-turning lips h h, each having a length lessthan that of the projection g, and each being detachably supported andconfined on the projection g, substantially as described and for thepurposes set forth.

In testimony that I claim the foregoing as my invention I have signed myname in presence of two witnesses.

ALFRED BIRNIE.

Witnesses:

FRANK H. BOWEN, WVM. S. BELLoWs.

